WC connector DN 90 with rat blocker in black PE plastic, weldable, l = 180mm, with built-in mechanical rat blocker, rear side of valve clad with bite-resistant stainless steel, prevents the invasion of foreign objects to the WC, for wall-hung WCs with concealed cistern, packed in a box tested to DIN 1389, DIN EN 997, 5. 2. 6. and DIN EN 476, 5. 5